Adsorptive Performance of Ni(II) from Aqueous Solutions Using Biochar Made of Phragmites australis by Adding Ammonium Polyphosphate as Flame Retardant

Figure 1

Thermogravimetric analysis (TGA) and derivative thermogravimetric (DTG) curves of samples. (a) TGA curves of PA-300- samples; (b) DTG curves of PA-300- samples; (c) TGA curves of PA-400- samples; (d) DTG curves of PA-400- samples; (e) TGA curves of PA-500- samples; (f) DTG curves of PA-500- samples.

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